What is the CVSS score of CVE-2025-30158?

CVE-2025-30158 has a CVSS 3.1 base score of 7.1 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H. EPSS exploitation probability: 0.4%.

Which versions of Nameless are affected by CVE-2025-30158?

Organizations using NamelessMC face moderate risk from CVE-2025-30158, a resource exhaustion vulnerability rated CVSS 7.1.. A patch is available.

Is there a public PoC exploit available for CVE-2025-30158?

Yes, a public proof-of-concept exploit is available for CVE-2025-30158. Prioritise patching immediately. EPSS: 0.4%.

How to fix or mitigate CVE-2025-30158?

Within 7 days: Identify all affected systems running version 2.1.4 and and apply vendor patches promptly. Vendor patch is available.

Nameless CVE-2025-30158

HIGH

Uncontrolled Resource Consumption (CWE-400)

2025-04-18 security-advisories@github.com

Denial Of Service Nameless

7.1

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

7.1 HIGH

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:37 vuln.today

Patch released

Mar 28, 2026 - 18:37 nvd

Patch available

PoC Detected

May 13, 2025 - 15:40 vuln.today

Public exploit code

CVE Published

Apr 18, 2025 - 16:15 nvd

HIGH 7.1

DescriptionGitHub Advisory

NamelessMC is a free, easy to use & powerful website software for Minecraft servers. In version 2.1.4 and prior, the forum allows users to post iframe elements inside forum topics/comments/feed with no restriction on the iframe's width and height attributes. This allows an authenticated attacker to perform a UI-based denial of service (DoS) by injecting oversized iframes that block the forum UI and disrupt normal user interactions. This issue has been patched in version 2.2.0.

AnalysisAI

NamelessMC is a free, easy to use & powerful website software for Minecraft servers. Rated high severity (CVSS 7.1), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified as Uncontrolled Resource Consumption (CWE-400), which allows attackers to cause denial of service by exhausting system resources. NamelessMC is a free, easy to use & powerful website software for Minecraft servers. In version 2.1.4 and prior, the forum allows users to post iframe elements inside forum topics/comments/feed with no restriction on the iframe's width and height attributes. This allows an authenticated attacker to perform a UI-based denial of service (DoS) by injecting oversized iframes that block the forum UI and disrupt normal user interactions. This issue has been patched in version 2.2.0. Affected products include: Namelessmc Nameless. Version information: version 2.1.4.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Implement rate limiting, set resource quotas, validate input sizes, use timeouts.

CVE-2025-30158 vulnerability details – vuln.today

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